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Halobacterium jilantaiense sp. nov., a halophilic archaeon isolated from a saline lake in Inner Mongolia, China

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Zeitschriftentitel: International Journal of Systematic and Evolutionary Microbiology
Personen und Körperschaften: Yang, Yong, Cui, Heng-Lin, Zhou, Pei-Jin, Liu, Shuang-Jiang
In: International Journal of Systematic and Evolutionary Microbiology, 56, 2006, 10, S. 2353-2355
Format: E-Article
Sprache: Englisch
veröffentlicht:
Microbiology Society
Schlagwörter:
General Medicine
Ecology, Evolution, Behavior and Systematics
Microbiology
Details
Zusammenfassung: <jats:p>A novel halophilic archaeon, NG4<jats:sup>T</jats:sup>, was isolated from Jilantai salt lake in Inner Mongolia, China. The taxonomy of strain NG4<jats:sup>T</jats:sup> was studied by polyphasic methods. Strain NG4<jats:sup>T</jats:sup> grew at pH 5.5–8.5 and at a temperature of 22–55 °C. It was chemo-organotrophic, aerobic and required concentrations of 2.7–5.2 M NaCl and 0.05–0.3 M Mg<jats:sup>2+</jats:sup> for growth. Cells were Gram-negative, slender rods. Colonies on agar plates containing 25 % (w/v) total salts were red, elevated and round. According to 16S rRNA gene sequence similarity, strain NG4<jats:sup>T</jats:sup> was phylogenetically related to <jats:italic>Halobacterium salinarum</jats:italic> DSM 3754<jats:sup>T</jats:sup> (98.2 %) and <jats:italic>Halobacterium noricense</jats:italic> A1<jats:sup>T</jats:sup> (97.3 %). The DNA G+C content was 64.2 mol%. DNA–DNA relatedness values with <jats:italic>Hbt. salinarum</jats:italic> DSM 3754<jats:sup>T</jats:sup> and <jats:italic>Hbt. noricense</jats:italic> A1<jats:sup>T</jats:sup> were 47 and 35 %, respectively. The polar lipids of strain NG4<jats:sup>T</jats:sup> consisted of phosphatidylglycerol, methylated phosphatidylglycerol phosphate, phosphatidylglycerol sulfate, triglycosyl diether, sulfated triglycosyl diether and sulfated tetraglycosyl diether. It was concluded that strain NG4<jats:sup>T</jats:sup> represents a novel species of the genus <jats:italic>Halobacterium</jats:italic>, for which the name <jats:italic>Halobacterium jilantaiense</jats:italic> sp. nov. is proposed. The type strain is NG4<jats:sup>T</jats:sup> (=CGMCC 1.5337<jats:sup>T</jats:sup>=JCM 13558<jats:sup>T</jats:sup>).</jats:p>
Umfang: 2353-2355
ISSN: 1466-5026
1466-5034
DOI: 10.1099/ijs.0.64437-0